Move druid mana bar into the unit frame, off nampower

The druid secondary mana bar (shown while shapeshifted into a form that
uses energy/rage) lived in nampower.lua and read base mana through
nampower's GetUnitField. Extract it into the unit frame proper and drive
it with ClassicAPI instead:

- Create pfDruidMana_<unit> as f.druidmana in CreateUnitFrame (player and
  target), lay it out in UpdateConfig from the existing C.unitframes.druidmana*
  keys, and update it in a new pfUI.uf:UpdateDruidMana driven by the frame's
  own base-refresh pass (UNIT_MANA / UNIT_DISPLAYPOWER). No separate event
  frames, no nampower dependency.
- Read mana via UnitPower(unit, 0) / UnitPowerMax(unit, 0), the ClassicAPI
  slot getters that return the mana pool regardless of the active power, so
  it works while in Cat/Bear form.
- Add a "Show Druid Mana Bar Text" toggle (druidmanatext) so the current/max
  readout can be hidden while keeping the bar; config default, GUI checkbox,
  and locale stubs.
- Remove the now-dead block from nampower.lua.

modules/nampower.lua

@@ -162,191 +162,4 @@ pfUI:RegisterModule("nampower", function ()
     end, true)
   end
 
-  -- Druid Secondary Mana Bar
-  -- Shows base mana when druid is in shapeshift form (Bear/Cat uses Rage/Energy)
-  -- Uses Nampower's GetUnitField to get base mana values
-  -- Fully self-contained: uses its own config settings from C.unitframes.druidmana*
-    if GetUnitField and pfUI.uf and pfUI_config.unitframes.druidmanabar == "1" then
-    local rawborder, default_border = GetBorderSize("unitframes")
-    local DC = C.unitframes -- druid mana config lives here as druidmana* keys
-
-    -- Shared helper: create a druid mana bar on a unit frame
-    local function CreateDruidManaBar(parent, unit)
-      if not parent then return nil end
-
-      local parentConfig = parent.config
-
-      -- Read own config values
-      local dmHeight = tonumber(DC.druidmanaheight) or 10
-      local dmWidth = DC.druidmanawidth or "-1"
-      local dmOffX = tonumber(DC.druidmanaoffx) or 0
-      local dmOffY = tonumber(DC.druidmanaoffy) or 0
-      local dmSpace = tonumber(DC.druidmanaspace) or -3
-      local dmTexture = DC.druidmanatexture or "Interface\\AddOns\\pfUI\\img\\bar"
-
-      local bar = CreateFrame("StatusBar", "pfDruidMana_" .. unit, parent)
-      bar:SetFrameStrata(parent:GetFrameStrata())
-      bar:SetFrameLevel(parent:GetFrameLevel() + 5)
-      bar:SetStatusBarTexture(pfUI.media[dmTexture] or dmTexture)
-
-      -- Bar color: use same manacolor logic as the normal power bar
-      local manacolor = parentConfig.defcolor == "0" and parentConfig.manacolor or C.unitframes.manacolor
-      local r, g, b, a = pfUI.api.strsplit(",", manacolor)
-      bar:SetStatusBarColor(tonumber(r) or .25, tonumber(g) or .25, tonumber(b) or 1, tonumber(a) or 1)
-
-      -- Size: own width/height, fallback to parent power bar width if -1
-      local width = dmWidth ~= "-1" and tonumber(dmWidth) or nil
-      if width then
-        bar:SetWidth(width)
-      end
-      bar:SetHeight(dmHeight)
-
-      -- Position below the power bar with own spacing + offsets
-      local spacing = -2 * default_border - dmSpace
-      if width then
-        -- Fixed width: use single point with offset
-        bar:SetPoint("TOP", parent.power, "BOTTOM", dmOffX, spacing + dmOffY)
-      else
-        -- Auto width: anchor to both sides of power bar
-        bar:SetPoint("TOPLEFT", parent.power, "BOTTOMLEFT", dmOffX, spacing + dmOffY)
-        bar:SetPoint("TOPRIGHT", parent.power, "BOTTOMRIGHT", dmOffX, spacing + dmOffY)
-      end
-      bar:Hide()
-
-      CreateBackdrop(bar)
-      CreateBackdropShadow(bar)
-
-      -- Font settings (same logic as power bar)
-      local fontname = pfUI.font_unit
-      local fontsize = tonumber(pfUI_config.global.font_unit_size)
-      local fontstyle = pfUI_config.global.font_unit_style
-
-      if parentConfig.customfont == "1" then
-        fontname = pfUI.media[parentConfig.customfont_name]
-        fontsize = tonumber(parentConfig.customfont_size)
-        fontstyle = parentConfig.customfont_style
-      end
-
-      -- Text color (always mana-colored)
-      local tr, tg, tb = ManaBarColor[0].r, ManaBarColor[0].g, ManaBarColor[0].b
-      if C.unitframes.pastel == "1" then
-        tr, tg, tb = (tr + .75) * .5, (tg + .75) * .5, (tb + .75) * .5
-      end
-
-      -- Single center text showing current/max
-      bar.text = bar:CreateFontString(nil, "OVERLAY", "GameFontNormalSmall")
-      bar.text:SetFontObject(GameFontWhite)
-      bar.text:SetFont(fontname, fontsize, fontstyle)
-      bar.text:SetPoint("CENTER", bar, "CENTER", 0, 0)
-      bar.text:SetJustifyH("CENTER")
-      bar.text:SetTextColor(tr, tg, tb, 1)
-
-      return bar
-    end
-
-    -- Shared helper: update druid mana bar values and text
-    local function UpdateDruidManaBar(bar, unit)
-      if not UnitExists(unit) then
-        bar:Hide()
-        return
-      end
-
-      -- For non-player units, only show if the target is a Druid
-      if unit ~= "player" then
-        local _, unitClass = UnitClass(unit)
-        if unitClass ~= "DRUID" then
-          bar:Hide()
-          return
-        end
-      end
-
-      local powerType = UnitPowerType(unit)
-
-      -- Only show when NOT using mana (i.e., in Bear/Cat form)
-      if powerType == 0 then
-        bar:Hide()
-        return
-      end
-
-      -- Get base mana using Nampower's GetUnitField
-      local baseMana, baseMaxMana
-      local guid = UnitGUID(unit)
-
-      if guid then
-        baseMana = GetUnitField(guid, "power1")
-        baseMaxMana = GetUnitField(guid, "maxPower1")
-      end
-
-      -- Round down power values (Nampower can return decimals)
-      if baseMana then baseMana = math.floor(baseMana) end
-      if baseMaxMana then baseMaxMana = math.floor(baseMaxMana) end
-
-      if type(baseMana) ~= "number" or type(baseMaxMana) ~= "number" or baseMaxMana == 0 then
-        bar:Hide()
-        return
-      end
-
-      -- Update bar
-      bar:SetMinMaxValues(0, baseMaxMana)
-      bar:SetValue(baseMana)
-
-      -- Always show current/max
-      bar.text:SetText(string.format("%s/%s", Abbreviate(baseMana), Abbreviate(baseMaxMana)))
-
-      bar:Show()
-    end
-
-    -- ===== Player Druid Mana Bar =====
-    local _, playerClass = UnitClass("player")
-    if pfUI.uf.player and playerClass == "DRUID" then
-      local playerMana = CreateDruidManaBar(pfUI.uf.player, "player")
-
-      if playerMana then
-        playerMana:RegisterEvent("UNIT_MANA")
-        playerMana:RegisterEvent("UNIT_MAXMANA")
-        playerMana:RegisterEvent("UNIT_DISPLAYPOWER")
-        playerMana:RegisterEvent("UPDATE_SHAPESHIFT_FORM")
-        playerMana:RegisterEvent("PLAYER_LOGOUT")
-        playerMana:SetScript("OnEvent", function()
-          if event == "PLAYER_LOGOUT" then
-            this:UnregisterAllEvents()
-            this:SetScript("OnEvent", nil)
-            return
-          end
-          if arg1 == nil or arg1 == "player" then
-            UpdateDruidManaBar(playerMana, "player")
-          end
-        end)
-
-        -- Initial update
-        UpdateDruidManaBar(playerMana, "player")
-      end
-    end
-
-    -- ===== Target Druid Mana Bar =====
-    if pfUI.uf.target then
-      local targetMana = CreateDruidManaBar(pfUI.uf.target, "target")
-
-      if targetMana then
-        targetMana:RegisterEvent("UNIT_MANA")
-        targetMana:RegisterEvent("UNIT_MAXMANA")
-        targetMana:RegisterEvent("UNIT_DISPLAYPOWER")
-        targetMana:RegisterEvent("PLAYER_TARGET_CHANGED")
-        targetMana:RegisterEvent("PLAYER_LOGOUT")
-        targetMana:SetScript("OnEvent", function()
-          if event == "PLAYER_LOGOUT" then
-            this:UnregisterAllEvents()
-            this:SetScript("OnEvent", nil)
-            return
-          end
-          if event == "PLAYER_TARGET_CHANGED" or arg1 == nil or arg1 == "target" then
-            UpdateDruidManaBar(targetMana, "target")
-          end
-        end)
-
-        -- Initial update
-        UpdateDruidManaBar(targetMana, "target")
-      end
-    end
-  end
 end)