docs: resync remaining stale references after S-tier + demo changes (#5)

- deployment-guide.md: embed example now lists all 14 cards (was 9).
- codebase-summary.md: FetchProductive row includes Weekday / WeekdayAllTime;
  shared helpers list adds renderWeekday, renderHeatmap, mixHex/parseHex.
- system-architecture.md: per-commit fetch diagram shows the weekday bucket
  alongside the hour bucket.

docs/codebase-summary.md

@@ -59,7 +59,7 @@ All network I/O. Exposes a `*Client` with three fetchers; every call takes a `co
 | --- | --- | --- |
 | `FetchProfile(ctx, login, opts)` | username, visibility flags | Profile basics, totals, owned-repos aggregation, last-year daily calendar, `TopRepos` |
 | `FetchContributionsAllTime(ctx, p, opts)` | Profile | `SeedRepos`, `DailyContributionsAllTime`, `TotalCommitsAllTime` |
-| `FetchProductive(ctx, p, repos, loc, cap)` | Profile + seed + tz + cap | `Productive`, `CommitsByLanguage`, `ProductiveAllTime`, `CommitsByLanguageAllTime` |
+| `FetchProductive(ctx, p, repos, loc, cap)` | Profile + seed + tz + cap | `Productive`, `Weekday`, `CommitsByLanguage`, `ProductiveAllTime`, `WeekdayAllTime`, `CommitsByLanguageAllTime` |
 
 Call order in `main.go`: Profile → AllTime → Productive. `Client.query` handles GitHub rate limits transparently — on 429 or 403 with `X-RateLimit-Remaining: 0`, it honors `Retry-After` / `X-RateLimit-Reset` (capped at 5 minutes) and retries once.
 
@@ -78,8 +78,11 @@ type Card interface {
 
 Shared helpers:
 - `renderDonutCard` — language donut + legend (used by 3 language cards)
-- `renderProductiveTime` — 24h bar chart (used by both productive cards)
+- `renderProductiveTime` — 24h bar chart (used by both productive-time cards)
+- `renderWeekday` — 7-bar day-of-week chart (used by both productive-weekday cards)
 - `renderContributions` — smooth area chart (used by both contributions cards)
+- `renderHeatmap` — 7×N calendar grid with `mixHex`-derived intensity ramp
+- `mixHex` / `parseHex` — `#rrggbb` blending (used by heatmap, by-year, weekday for peak-vs-dim bars)
 - `header`, `footer` — SVG chrome
 - `niceTicks`, `formatTick` — axis math
 

docs/deployment-guide.md

@@ -56,10 +56,16 @@ Create one at <https://github.com/settings/tokens> → "Generate new token (clas
 ![most-commit-language](./output/dracula/most-commit-language.svg)
 ![stats](./output/dracula/stats.svg)
 ![productive-time](./output/dracula/productive-time.svg)
+![productive-weekday](./output/dracula/productive-weekday.svg)
 ![contributions](./output/dracula/contributions.svg)
+![contributions-heatmap](./output/dracula/contributions-heatmap.svg)
+![top-starred-repos](./output/dracula/top-starred-repos.svg)
+![streak](./output/dracula/streak.svg)
 ![most-commit-language-all-time](./output/dracula/most-commit-language-all-time.svg)
 ![productive-time-all-time](./output/dracula/productive-time-all-time.svg)
+![productive-weekday-all-time](./output/dracula/productive-weekday-all-time.svg)
 ![contributions-all-time](./output/dracula/contributions-all-time.svg)
+![contributions-by-year](./output/dracula/contributions-by-year.svg)
 ```
 
 The Action commits SVGs to `output/<theme>/` on the default branch. GitHub serves them from the raw URL the README references.

docs/system-architecture.md

@@ -46,9 +46,11 @@ FetchContributionsAllTime(ctx, profile, opts)
 FetchProductive(ctx, profile, profile.SeedRepos, loc, commitsPerRepo)
   │  commitHistoryQuery × (#seeds × pages)
   │  per commit: t = committedDate in loc
-  │              ProductiveAllTime[t.Hour]++  + language votes
-  │              if t.After(yearAgo): Productive[t.Hour]++ + language votes
-  │  yields: Productive, ProductiveAllTime,
+  │              ProductiveAllTime[t.Hour]++
+  │              WeekdayAllTime[t.Weekday]++  + language votes
+  │              if t.After(yearAgo): Productive[t.Hour]++
+  │                                   Weekday[t.Weekday]++ + language votes
+  │  yields: Productive, Weekday, ProductiveAllTime, WeekdayAllTime,
   │          CommitsByLanguage, CommitsByLanguageAllTime
   │
   ▼