Align README and command help text with current behavior

[Chebaleomkar]

Fixes #97

Problem

Several README sections still describe behavior from before recall moved to direct mode and containers were unified. The Features table and example output describe first-message project knowledge and advisory recall; the config comments describe what autoRecallEveryPrompt, maxMemories, and maxProjectMemories used to do. Two user-facing strings in code had drifted too. #97 has the full list with code references.

Fix

Docs and help text only. No behavior changes.

README

• Features table: "Context injection" becomes Profile injection (the first message gets the profile only), and "Reasoned recall" becomes Direct recall, the default mode, with a pointer to recallMode: "advisory".
• Example output: replaced the sections that are never produced with the two real blocks, the first-message [SUPERMEMORY] profile block and the direct-recall <supermemory-context> block, copied from context.ts and recall.ts.
• In-chat commands: /supermemory-init is the index alias, not install.
• LLM-agent Step 1: lists everything install actually does (5 commands, tui.jsonc, config defaults).
• Direct Recall: notes that setting recallDirective without recallMode selects advisory mode.
• Tool table: search takes limit?, list defaults to 20, and search without a scope searches both scopes.
• Config reference:
  • maxMemories is the per-search limit (direct recall injects at most 5).
  • maxProjectMemories feeds compaction.
  • autoRecallEveryPrompt is shown as a legacy, commented-out switch.
  • filterPrompt is documented, including that the plugin applies it to Supermemory settings.
  • The captureEveryNTurns default is stated.
  • recallMode default is direct.
• Container tag selection: documents the full precedence getProjectTag uses, so users know a Claude Code or Cursor project config overrides projectContainerTag.
• SUPERMEMORY_DEBUG: describes what it actually does. Logs are always written.

Code strings

• src/cli.ts: the generated /supermemory-login command no longer claims a fixed port 19877. The callback port is random.
• src/services/memory-tool.ts: the tool's help output lists limit? for search, matching what the mode accepts.

Testing

• Checked every changed statement against the code on main. README describes recall and config behavior the plugin no longer has #97 lists file and line references for each.
• All README anchor links resolve.
• bun run typecheck is clean and bun test passes (33 tests).
• Merges cleanly alongside the other open PRs (Keep login waiting when the browser cannot be opened #90, Use the loaded supermemory config file in install and status #92, Create the OpenCode config directory before writing install defaults #94, Send the real plugin version during login #96): 39 tests pass on the combined branch.

The headless-setup text (create ~/.config/opencode/supermemory.jsonc) is intentionally unchanged, because it's correct once #92 lands.